bench mode: live camera via thermald, blinking telemetry indicator

- Unblocked thermald and camerad — thermald manages CPU cores and reads
  fake pandaStates for ignition, bench no longer publishes deviceState
- camerad starts with live camera feed on bench
- Force nvg->update() every frame for HUD repaint without camera dependency
- Blue blinking telemetry circle uses getBool pattern
- camerad debug logging for startup diagnostics

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

selfdrive/clearpilot/bench_onroad.py

@@ -36,8 +36,9 @@ def main():
   params_mem.put("BenchGear", "P")
   params_mem.put("BenchEngaged", "0")
 
+  # thermald handles deviceState (reads our fake pandaStates for ignition)
   pm = messaging.PubMaster([
-    "deviceState", "pandaStates", "carState", "controlsState",
+    "pandaStates", "carState", "controlsState",
     "driverMonitoringState", "liveCalibration",
   ])
 
@@ -65,19 +66,7 @@ def main():
       speed_ms = speed_mph * MS_PER_MPH
       gear = gear_map.get(gear_str, car.CarState.GearShifter.park)
 
-      # deviceState — 2 Hz
-      if frame % 5 == 0:
-        dat = messaging.new_message("deviceState")
-        dat.deviceState.started = True
-        dat.deviceState.freeSpacePercent = 80
-        dat.deviceState.memoryUsagePercent = 30
-        dat.deviceState.cpuTempC = [40.0] * 3
-        dat.deviceState.gpuTempC = [40.0] * 3
-        dat.deviceState.cpuUsagePercent = [20] * 8
-        dat.deviceState.networkType = log.DeviceState.NetworkType.cell4G
-        pm.send("deviceState", dat)
-
-      # pandaStates — 10 Hz
+      # pandaStates — 10 Hz (thermald reads ignition from this)
       if frame % 1 == 0:
         dat = messaging.new_message("pandaStates", 1)
         dat.pandaStates[0].ignitionLine = True